mp4p5 group 1

http://msds.chem.ox.ac.uk/safety_phrases.html
Justin
Becky
Sasha

Zinc-Oxide: Non-toxic, hazardous to breathe in the fumes.

Copper (II) Sulfate: Irritant, can recieve toxic exposure



http://en.wikipedia.org/wiki/Zinc_oxide#Safety





copper (II) sulfate :CuSO4



Zinc-oxide:ZnO


Observations: Gray brittle not shiny



LAB FROM APRIL 12
1. we had to first balance the scale to zero!
======2. Then we had to put a piece of paper on the scale and zero it out again




















Research for april 26th :


Calcium Chloride CaCL2
1 can act as an irritant by desiccating moist skin.
2.When it dissolve it reless heat in your mouth.